Moderate climatic areas of Asia, where it started its conquest and practically consumed in Japan, throughout China and Europe. With the spread of potatoes and wheat, they were increasingly in the background.
Its nutritional value is typically its carbohydrate content, but unlike conventional cereals, buckwheat fiber content is outstanding. Its amino acid composition is also much more favorable.
It has high calcium and magnesium content, and it is not negligible that its high potassium content and sodium are rather poor.
In addition, due to its very valuable source of vitamins (vitamins E, B1 and B2), flavonoids and routine (vitamin P) It is also an excellent drug for radiation damage caused by radiotherapy.